基于三维设计软件CATIA，构建了二级齿轮减速器的实体模型。

Based on CATIA, the model of the secondary gear reducer is built.

youdao

基于三维设计软件CATIA，构建了二级齿轮减速器的实体模型。

Based on CATIA, the model of the secondary gear reducer is built.

youdao